KR19980045831A - Curve driving judgment system and method for judging A / T vehicle - Google Patents

Curve driving judgment system and method for judging A / T vehicle Download PDF

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Publication number
KR19980045831A
KR19980045831A KR1019960064047A KR19960064047A KR19980045831A KR 19980045831 A KR19980045831 A KR 19980045831A KR 1019960064047 A KR1019960064047 A KR 1019960064047A KR 19960064047 A KR19960064047 A KR 19960064047A KR 19980045831 A KR19980045831 A KR 19980045831A
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South Korea
Prior art keywords
drive shaft
vehicle
rotational speed
speed
same
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KR1019960064047A
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Korean (ko)
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KR100373634B1 (en
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이상철
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김영귀
기아자동차 주식회사
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Priority to KR1019960064047A priority Critical patent/KR100373634B1/en
Publication of KR19980045831A publication Critical patent/KR19980045831A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B60K28/16—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle  responsive to, or preventing, skidding of wheels
    • B60K28/165—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle  responsive to, or preventing, skidding of wheels acting on elements of the vehicle drive train other than the propulsion unit and brakes, e.g. transmission, clutch, differential
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
    • B60K31/0066—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator responsive to vehicle path curvature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/301—Sensors for position or displacement

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

본 발명은 A/T 차량의 곡선 주행 판단 시스템 및 그 판단방법에 관한 것으로, 특히 일측 구동축 단부에 자기 펄스 픽업 센서를 구비하여 곡선길 주행상태를 정확하게 판달할 수 있는 A/T 차량의 곡선 주행 판단 시스템 및 그 판단방법에 관한 것이다.The present invention relates to a curve driving determination system of the A / T vehicle and a method of determining the same. In particular, a curve driving determination of an A / T vehicle capable of accurately determining a curved road driving state by having a magnetic pulse pickup sensor at one end of a driving shaft is provided. It relates to a system and a method of determining the same.

본 발명은 구동축의 단부에 설치되어 구동축의 회전수를 검출하기 위한 구동축 회전수 센서와, 토크 컨버터의 터빈의 회전수를 검출하기 위한 터빈 회전수 센서와, 스로틀 밸브의 개도량을 검출하기 위한 스로틀 위치센서와, 차속신호를 발생하는 차속센서와, 차동기어의 회전수가 구동축의 회전수와 비교하여 동일하지 않은 경우에 곡선길 주행으로 판단하고 변속을 금지하며 서로 동일할 경우 직진주행인 것으로 판단하는판정 제어수단으로 구성되는 것을 특징으로 한다.The present invention is provided at the end of the drive shaft drive shaft speed sensor for detecting the rotational speed of the drive shaft, turbine speed sensor for detecting the rotational speed of the turbine of the torque converter, and throttle for detecting the opening amount of the throttle valve When the rotation speed of the position sensor, the vehicle speed sensor that generates the vehicle speed signal, and the differential gear is not the same as the rotation speed of the drive shaft, it is determined that driving on a curved road is prohibited. Characterized in that it comprises a decision control means.

Description

A/T 차량의 곡선 주행 판단 시스템 및 그 판단방법Curve driving judgment system of A / T vehicle and its judgment method

본 발명은 A/T 차량의 곡선 주행 판단 시스템 및 그 판단방법에 관한 것으로, 특히 일측 구동축 단부에 자기 펄스 픽업 센서를 구비하여 곡선길 주행상태를 정확하게 판단할 수 있는 A/T 차량의 곡선 주행 판단 시스템 및 그 판단방법에 관한 것이다.The present invention relates to a curved driving determination system and a method of determining the A / T vehicle, and in particular, a curve driving determination of an A / T vehicle capable of accurately determining a curved road driving state by providing a magnetic pulse pickup sensor at one end of a driving shaft. It relates to a system and a method of determining the same.

일반적으로 자동 변속기는 클러치와 변속기의 조작을 사람 대신에 기계가 하도록 자동화한 것으로 기어 변속을 하지 않아도 되므로 운전이 편리하여 점차 많은 차량에 탑재 사용되고 있다.In general, the automatic transmission is a machine that automates the operation of the clutch and the transmission instead of a person, and does not have to shift gears, so it is convenient to drive and is being used in more and more vehicles.

이러한 자동 변속기에서는 셀렉트 레버를 시프트시켜서 보통 주행할 때 사용하는 D 레인지와, 강한 엔진 브레이크를 필요로 하는 주행을 할 때 사용하는 L 레인지와, 후진을 위한 R 레인지와, 차량을 주차할 때 사용하는 P(Parking) 레인지와, 동력전달을 차단시켜 주는 N(Neutral) 레인지와, S(Slow) 레인지 등으로 이루어진 각 레인지중 어느 하나의 레인지를 주행상태에 따라 선택한다.This automatic transmission shifts the select lever to the D range used for normal driving, the L range used for driving requiring strong engine brakes, the R range for reversing, and the parked vehicle. One of each range consisting of a P (Parking) range, an N (Neutral) range that blocks power transmission, a S (Slow) range, and the like is selected according to the driving condition.

한편 A/T 차량에서 곡선길 주행중 변속금지를 하는 것이 바람직한 것으로 알려져 있다.On the other hand, it is known that the shift is prohibited while driving on a curved road in an A / T vehicle.

그러나 이러한 곡선길 주행중 변속금지를 실행하기 위해서는 차량이 곡선길 주행여부를 판정하는 것이 요구되나 현재는 이러한 것을 검출하거나 이를 판단할 수 있는 시스템이 제안되고 있지 않다.However, in order to execute the shift prohibition during driving on the curved road, it is required to determine whether the vehicle is driving on the curved road, but at present, there is no system for detecting this or determining the current.

따라서 본 발명은 이러한 종래기술의 문제점을 감안하여 안출된 것으로, 그 목적은 일측 구동축 단부에 자기 펄스 픽업 센서를 구비하여 곡선길 주행상태를 정확하게 판달할 수 있는 A/T 차량의 곡선 주행 판단 시스템 및 그 판단방법을 제공하는데 있다.Therefore, the present invention has been made in view of the problems of the prior art, the purpose of which is provided with a magnetic pulse pickup sensor at one end of the drive shaft end of the curve driving determination system of the A / T vehicle that can accurately determine the driving condition of the curved road and The determination method is to provide.

도 1은 자동 변속기 내부의 차동 기어부를 도시한 개략 구성도.1 is a schematic configuration diagram showing a differential gear unit inside an automatic transmission.

도 2는 본 발명에 따른 자기 펄스 픽업 센서 구조를 보여주는 정면도 및 측면도.2 is a front view and a side view showing the structure of the magnetic pulse pickup sensor according to the present invention.

도 3은 본 발명에 따른 A/T 차량의 곡선 주행 판단 시스템에 대한 개략 블록도.3 is a schematic block diagram of a curve driving determination system of an A / T vehicle according to the present invention;

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1; TCU3; 구동축 회전수 센서One; TCU3; Drive shaft speed sensor

5; 터빈 회전수 센서7; 스로틀 위치센서5; Turbine speed sensor 7; Throttle position sensor

9; 차속센서21; 입력 구동축9; Vehicle speed sensor 21; Input drive shaft

23; 차동기어25; 출력 구동축23; Differential gear 25; Output drive shaft

27; 요철부29; 픽업소자27; Uneven portion 29; Pickup element

31; 자기 펄스 픽업센서33; 로우패스 필터31; Magnetic pulse pickup sensor 33; Low pass filter

35; 파형 발생기35; Waveform generator

상기한 목적을 달성하기 위하여, 본 발명은 구동축의 단부에 설치되어 구동축의 회전수를 검출하기 위한 구동축 회전수 센서와, 토크 컨버터의 터빈의 회전수를 검출하기 위한 터빈 회전수 센서와, 스로틀 밸브의 개도량을 검출하기 위한 스로틀 위치센서와, 차속신호를 발생하는 차속센서와, 차동기어의 회전수가 구동축의 회전수와 비교하여 동일하지 않은 경우에 곡선길 주행으로 판단하고 변속을 금지하며 서로 동일할 경우 직진주행인 것으로 판단하는 판정 제어수단으로 구성되는 것을 특징으로 하는 A/T 차량의 곡선 주행 판단 시스템을 제공한다.In order to achieve the above object, the present invention is provided at the end of the drive shaft drive shaft speed sensor for detecting the rotational speed of the drive shaft, turbine speed sensor for detecting the rotational speed of the turbine of the torque converter, throttle valve The throttle position sensor for detecting the opening degree of the vehicle, the vehicle speed sensor for generating the vehicle speed signal, and the rotation speed of the differential gear are judged as driving on the curved road when the rotation speed of the differential gear is not the same as the rotation speed of the drive shaft. If so, it provides a curve driving determination system of the A / T vehicle, characterized in that consisting of a determination control means for determining that the driving straight.

또한 본 발명의 판단방법은 현재의 기어단수를 판단하는 단계와, 차동기어의 회전수를 터빈 회전수와 현재의 기어비에 의해 구하는 단계와, 상기 차동기어의 회전수와 구동축의 회전수가 동일한 지를 판단하는 단계와, 상기 회전수가 서로 동일한 경우 직진주행으로 판단하여 정상변속을 실행하고, 서로 다른 경우에는 곡선길 주행으로 판단하여 변속지령이 나올지라도 상기 회전수가 서로 동일하게 될 때까지 변속을 금지하는 단계로 구성되는 것을 특징으로 한다.In addition, the determination method of the present invention comprises the steps of determining the current gear stage, the step of determining the rotational speed of the differential gear by the turbine speed and the current gear ratio, and determine whether the rotational speed of the differential gear and the rotational speed of the drive shaft is the same And if the rotational speeds are the same, determining that the vehicle is going straight and performing normal shifting, and if the rotational speeds are different, prohibiting the shifting until the rotational speeds become the same even if a shift command is issued. Characterized in that consists of.

상기한 바와 같이 일측 구동축 단부에 자기 펄스 픽업 센서를 구비하여 차동기어의 회전수와 구동축의 회전수를 상호 비교하여 구동축 단부의 회전수가 변속기 내부의 회전수와 동일한지를 판단함에 의해 곡선길 주행상태를 정확하게 판단할 수 있게 된다.As described above, a magnetic pulse pickup sensor is provided at one end of the drive shaft to compare the rotational speed of the differential gear and the rotational speed of the drive shaft, and determine whether the rotational speed of the drive shaft end is the same as the speed of the inside of the transmission. You can judge accurately.

[실시예]EXAMPLE

이하에 상기한 본 발명을 바람직한 실시예가 도시된 첨부도면을 참고하여 더욱 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

첨부된 도 1은 자동 변속기 내부의 차동 기어부를 도시한 개략 구성도, 도 2는 본 발명에 따른 자기 펄스 픽업 센서 구조를 보여주는 정면도 및 측면도, 도 3은 본 발명에 따른 A/T 차량의 곡선 주행 판단 시스템에 대한 개략 블록도, 도 4는 본 발명 시스템의 제어 흐름도이다.1 is a schematic configuration diagram showing a differential gear unit inside an automatic transmission, FIG. 2 is a front view and a side view showing a magnetic pulse pickup sensor structure according to the present invention, and FIG. 3 is a curve of an A / T vehicle according to the present invention. 4 is a control flowchart of the present invention system.

먼저 도 1 및 도 2를 참고하면, 입력 구동축(21)과 출력 구동축(25) 사이에 차동 기어(23)가 개재되어 있고, 일측 구동축(21)의 단부에는 도 2와 같은 자기펄스로 픽업신호를 발생할 수 있게 다수의 요철부(27)와 상기 요철부(27)의 회전에 따라 자기적으로 이를 검출하기 위한 픽업소자(29)가 설치되어 있다. 상기 요철부(27)와 픽업소자(29)는 자기 펄스 픽업센서(31)를 구성한다.First, referring to FIGS. 1 and 2, a differential gear 23 is interposed between the input drive shaft 21 and the output drive shaft 25, and the pickup signal is formed at the end of one side drive shaft 21 by a magnetic pulse as shown in FIG. 2. In order to generate a plurality of uneven parts 27 and pickup elements 29 for detecting them magnetically according to the rotation of the uneven parts 27 is provided. The uneven portion 27 and the pickup element 29 constitute a magnetic pulse pickup sensor 31.

한편 본 발명의 곡선 주행 판단 시스템은 마이크로컴퓨터로 구성되는 트랜스미션 제어 유닛(TCU)(1)의 입력에 구동축(21)의 단부에 설치되어 구동축의 회전수(Wa)를 검출하기 위한 구동축 회전수 센서(3)와, 클러치 내부의 터빈 회전수를 검출하기 위한 터빈 회전수 센서(5)와, 스로틀 밸브의 개도량을 검출하기 위한 스로틀 위치 센서(7)와, 차속신호를 발생하기 위한 차속센서(9)가 접속되어 있고, 곡선길 판정 및 변속 금지 명령이 TCU(1)의 출력으로부터 발생된다.On the other hand, the curved running determination system of the present invention is installed at the end of the drive shaft 21 to the input of the transmission control unit (TCU) (1) consisting of a microcomputer drive shaft speed sensor for detecting the rotation speed Wa of the drive shaft (3), a turbine speed sensor 5 for detecting the turbine speed inside the clutch, a throttle position sensor 7 for detecting the opening amount of the throttle valve, and a vehicle speed sensor for generating a vehicle speed signal ( 9) is connected, a curve road determination and a shift prohibition command are generated from the output of the TCU 1.

상기 구동축 회전수 센서(3)는 자기펄스 픽업센서(31)로부터 발생된 펄스신호를 저주파만을 로우패스 필터(33)에 의해 필터링한 후 파형 발생기(35)에 공급하여 구동축(21)의 회전수(Wa)를 검출한다.The drive shaft rotation speed sensor 3 filters the pulse signal generated from the magnetic pulse pickup sensor 31 by the low pass filter 33 and supplies the waveform to the waveform generator 35 to rotate the rotation speed of the drive shaft 21. (Wa) is detected.

상기와 같은 구성을 갖는 본 발명 시스템의 작용을 이하에 도 4를 참고하여 더욱 상세하게 설명한다.The operation of the present invention having the configuration as described above will be described in more detail with reference to FIG.

먼저 본 발명에서는 현재의 모드가 D,S,L 모드 중 어느 하나의 모드인지를 판단한다(S1). 즉 이를 판단하는 이유는 만약 N 또는 R 모드인 경우에는 변속이 이루어지지 않기 때문이다.First, in the present invention, it is determined whether the current mode is one of the D, S, and L modes (S1). That is, the reason for determining this is because the shift is not made in the N or R mode.

판단 결과 상기 D,S,L 모드 중 어느 하나인 경우에는 현재의 시속이 5Km/h 이상인지를 판단한다(S2). 이를 판단하는 이유는 시프트 패턴상의 1단이 12Km/h 이상에서 2단으로 변속이 일어나기 때문이다. 판단 결과 시속이 5Km/h 이상인 경우에는 시스템에 페일 신호가 없는지를 판단한다(S3).As a result of the determination, in any one of the D, S, and L modes, it is determined whether the current hourly speed is 5 Km / h or more (S2). The reason for this determination is that one shift on the shift pattern shifts from 12 km / h or more to two shifts. As a result of the determination, when the hourly speed is more than 5 km / h, it is determined whether there is a fail signal in the system (S3).

판단결과 페일신호가 없는 경우에는 현재의 기어단수를 판독한다(S4).If there is no fail signal as a result of the determination, the current gear stage is read (S4).

이어서 차동기어(23)의 회전수(Wd)를 하기식(1)으로 계산한다.Next, the rotation speed Wd of the differential gear 23 is calculated by the following equation (1).

Wd=Trev (터빈 회전수)×현 기어비 ----- 식 (1)Wd = Trev (Turbine Speed) × String Gear Ratio ----- Formula (1)

상기에서 현 기어비는 TCU(1) 내부의 메모리 데이터를 이용한다.In the above, the current gear ratio uses memory data inside the TCU 1.

그후 Wd와 상기 구동축 회전수 센서(3)에 의해 검출된 구동축 회전수(Wa)가 동일한지를 판단한다(S6).Thereafter, it is determined whether Wd and the drive shaft rotation speed Wa detected by the drive shaft rotation speed sensor 3 are the same (S6).

판단결과 서로 동일한 경우에는 직진주행인 것으로 판단하여 정상주행을 하며(S7), 만약 동일하지 않은 경우에는 TCU(1)에서 변속지령이 나왔는지를 판단한다(S8).As a result of determination, if it is identical to each other, it is determined that it is a straight run (S7).

판단결과 TCU(1)에서 변속지령이 나온 경우에는 Wd=Wa가 될 때까지 현재의 기어비를 유지하여 기어변속을 금지시킨다(S9).In the case where the shift command is issued from the TCU 1 as a result of the determination, the gear shift is prohibited by maintaining the current gear ratio until Wd = Wa (S9).

그후 Wd와 Wa가 동일한지를 판단하여(S10), 동일한 경우에는 정상주행을 한다(S11).After that, it is determined whether Wd and Wa are the same (S10), and if it is the same, normal driving (S11).

상기한 바와 같이 일측 구동축 단부에 자기 펄스 픽업 센서를 구비하여 차동기어의 회전수와 구동축의 회전수를 상호 비교하여 구동축 단부의 회전수가 변속기 내부의 회전수와 동일한지를 판단함에 의해 곡선길 주행상태를 정확하게 판단할 수 있게 된다.As described above, a magnetic pulse pickup sensor is provided at one end of the drive shaft to compare the rotational speed of the differential gear and the rotational speed of the drive shaft, and determine whether the rotational speed of the drive shaft end is the same as the speed of the inside of the transmission. You can judge accurately.

이상에서는 본 발명을 특정의 바람직한 실시예를 예를 들어 도시하고 설명하였으나, 본 발명은 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진자에 의해 다양한 변경과 수정이 가능할 것이다.In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

Claims (2)

구동축의 단부에 설치되어 구동축의 회전수를 검출하기 위한 구동축 회전수 센서와,A drive shaft rotation speed sensor provided at an end of the drive shaft to detect the rotation speed of the drive shaft; 토크 컨버터의 터빈의 회전수를 검출하기 위한 터빈 회전수 센서와,A turbine revolution sensor for detecting a revolution of the turbine of the torque converter; 스로틀 밸브의 개도량을 검출하기 위한 스로틀 위치센서와,A throttle position sensor for detecting the opening amount of the throttle valve, 차속신호를 발생하는 차속센서와,A vehicle speed sensor for generating a vehicle speed signal, 차동기어의 회전수가 구동축의 회전수와 비교하여 동일하지 않은 경우에 곡선길 주행으로 판단하고 변속을 금지하며 서로 동일할 경우 직진주행인 것으로 판단하는 판정 제어수단으로 구성되는 것을 특징으로 하는 A/T 차량의 곡선 주행 판단 시스템.A / T, characterized in that it comprises a determination control means for judging the driving of the curved road when the number of revolutions of the differential gear is not the same as the number of revolutions of the drive shaft, prohibits shifting, and is determined to be a straight run if they are the same. Curve driving judgment system of the vehicle. 현재의 기어단수를 판단하는 단계와,Determining the current gear stage; 차동기어의 회전수를 터빈 회전수와 현재의 기어비에 의해 구하는 단계와,Obtaining the rotational speed of the differential gear by the turbine rotational speed and the current gear ratio; 상기 차동기어의 회전수와 구동축의 회전수가 동일한 지를 판단하는 단계와,Determining whether the rotational speed of the differential gear and the rotational speed of the drive shaft are the same; 상기 회전수가 서로 동일한 경우 직진주행으로 판단하여 정상변속을 실행하고, 서로 다른 경우에는 곡선길 주행으로 판단하여 변속지령이 나올지라도 상기 회전수가 서로 동일하게 될 때까지 변속을 금지하는 단계로 구성되는 것을 특징으로 하는 A/T 차량의 곡선 주행 판단방법.If the rotational speed is the same, it is determined to go straight running to perform a normal shift, if different, judging as a curve road driving, the shifting is prohibited until the rotational speed is the same even if the shift command is issued. Curve driving determination method of the A / T vehicle characterized in that.
KR1019960064047A 1996-12-11 1996-12-11 Method for deciding curve-traveling of a/t vehicle KR100373634B1 (en)

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